Where do you hide it? In the bank, for example!
Do not save your money, but rather secure it by investing it in projects, no matter how small or large. The important thing is that investment doubles your money, but saving keeps it as it is.
As a matter of fact, it is not advisable to save a large amount in the bank unless the purpose of your depositing money in them is savings & investment type. The interest you get from the money you put in the bank is very low, so it's okay to save there if it's for an emergency fund or monthly expenses. It's even better if you can find an investment with a good return and can double up your initial money that you've invest, you can take a risk for that.
Yeah by investing right investment money grows fast but by investing you have to take risk if you don't invest in the right sector then you lose money. But the risk is less by keeping the money in the bank here the interest rate is lower but the amount of money is right you can withdraw it as you wish it is not possible in investment.